Home / 20,618.59-30,900.34-10,737.15

Finding the Fourth Proportional to 20,618.59, 30,900.34 and 10,737.15

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Solution

The fourth proportional to 20,618.59, 30,900.34 and 10,737.15 is: 16,091.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,618.59 : 30,900.34 = 10,737.15 : x
  2. Step 2: Convert to fraction form
    20,618.59/30,900.34 = 10,737.15/x
  3. Step 3: Cross multiply
    20,618.59x = 30,900.34 × 10,737.15
  4. Step 4: Simplify right side
    20,618.59x = 331,781,377.44
  5. Step 5: Solve for x
    x = 331,781,377.44/20,618.59
  6. Step 6: Final answer
    x = 16,091.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.